How did this get so high up on HN? This is in no way a breakthrough. The volume of scans and age ranges help nail down etiology, but the article and commentar

How did this get so high up on HN? This is in no way a breakthrough. The volume of scans and age ranges help nail down etiology, but the article and commentary here suggest that we didn't know what brain structures were involved or that ADHD is a "brain based disorder." We've been doing MRI research on ADHD for decades[0] and independent longitudinal studies that track ADHD children into adulthood[1]. [0]: http://ajp.psychiatryonline.org/doi/abs/10.1176/appi.ajp.2012.11101521 http://ajp.psychiatryonline.org/doi/abs/10.1176/appi.ajp.201... [1]: http://www.guilford.com/books/ADHD-in-Adults/Barkley-Murphy-Fischer/9781609180751/authors http://www.guilford.com/books/ADHD-in-Adults/Barkley-Murphy-...